Transcript Math Vocabulary Cards

All
Triangles=180
degrees
Triangles
Scalene
No sides or angles are
Equal
Right Triangle
One angle is 90 (a right
angle)
Triangles
Isosceles
2 sides and angles are
Equal
Equilateral
All sides and angles
are Equal
Acute Angle
An angle
LESS than
90 degrees
Obtuse Angle
An angle Greater
than 90 degrees.
Right Angle
An angle
that is
EXACTLY 90
degrees
Supplementary Angles
Two angles whose measures have a sum
of 180°
Complimentary Angles
Two angles whose measures have a sum
of 90°
Perpendicular Lines
Two lines that intersect to form four
right angles
Intersecting Lines
Two lines that cross at one point
NEVER MEET
Diameter: A line segment that passes through the circle and
has endpoints on the circle
Diameter
Radius
Radius: A line segment with one endpoint at the center of
the circle and the other endpoint on the circle
Place Value Chart
Percents, Decimals, and Fractions
50%
25%
75%
.25
.75
1
4
.50
1
2
3
4
Similar Figures: Figures
with same shape, but
NOT same size.
Congruent Figures:
Figures with the
same size and
shape
Line of Symmetry
A line that
divides a
shape
EXACTLY in
half.
A polygon with four sides
Polygon
A closed plane figure formed by
three or more line segments.
A solid figure that has the
shape of a round ball. All points
are the same distance from the
center
Perimeter: The distance around a figure
(add up all the sides)
2
3
Numerator
(TOP NUMBER)
Denominator
(BOTTOM
NUMBER)
The smallest number, other than zero,
that is a common multiple of two or
more numbers
Example:
multiples of 6: 6, 12, 18, 24, 30, 36
multiples of 9: 9, 18, 27, 36, 45, 54
The LCM of 6 and 9 is 18
The greatest factor that two or more
numbers have in common
Example:
18: 1, 2, 3, 6, 9, 18
30: 1, 2, 3, 5, 6, 10, 15, 30
6 is the GCF of 18 and 30
Commutative Property
The property that states that when the order of addends or
factors is changed, the sum or product is the same
Examples:
9+4=4+9
6x3=3x6
Associative Property
The property that states that the way addends are grouped
or factors are grouped does not change the
sum or the product
Examples:
12 + (5 + 9) = (12 + 5) + 9
(9 x 8) x 3 = 9 x (8 x 3)
Add
Words That Mean…
Multiply
 Times
 Product of
 Of
 Twice ( 2 )
 Altogether
 Plus
 Sum
 Total
 Increase
 More than
Divide
 Quotient of
 How often
 Per
 How much
for each?
Subtract
 Minus
 Difference
 Decrease
 Less than
 Have left
 Fewer
 How many
more
Please Excuse My Dear Aunt Sally
Parentheses
Exponents
( )
2
x
÷
+ and Subtraction -
Multiplication X and Division
Addition
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31,
37, 41, 43, 47, 53, 59, 61, 67, 71, 73,
79. 83, 89, 97, 101, 103, 107, 109,
113